1、BS EN 12907:2009ICS 13.060.20; 71.100.80NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDProducts used fortreatment of waterintended for humanconsumption Pyrolyzed coalmaterialThis British Standardwas published under theauthority of the StandardsPolicy and Strate
2、gyCommittee on 30 June2009. BSI 2009ISBN 978 0 580 63249 5Amendments/corrigenda issued since publicationDate CommentsBS EN 12907:2009National forewordThis British Standard is the UK implementation of EN 12907:2009. Itsupersedes BS EN 12907:2003 which is withdrawn.The UK participation in its preparat
3、ion was entrusted to TechnicalCommittee CII/59, Chemicals for drinking water treatment.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for it
4、s correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.BS EN 12907:2009EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 12907March 2009ICS 71.100.80 Supersedes EN 12907:2003 English VersionProducts used for treatment of water intended for humanconsumpt
5、ion - Pyrolyzed coal materialProduits chimiques pour le traitement de leau destine laconsommation humaine - Charbon pyrolysProdukte zur Aufbereitung von Wasser fr denmenschlichen Gebrauch - Thermisch behandelteKohleprodukteThis European Standard was approved by CEN on 9 February 2009.CEN members are
6、 bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the
7、 CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same sta
8、tus as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, S
9、lovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide f
10、or CEN national Members.Ref. No. EN 12907:2009: EBS EN 12907:2009EN 12907:2009 (E) 2 Contents Foreword 3Introduction .41 Scope 52 Normative references 53 Terms and definitions .54 Description .54.1 Identification .54.2 Commercial forms .55 Physical properties 55.1 Appearance 55.2 Particle size distr
11、ibution .55.3 Density 66 Chemical properties 66.1 Composition of commercial product .66.2 Purity criteria 67 Specific properties.78 Test methods 78.1 Sampling .78.2 Analysis 79 Labelling, transportation and storage .89.1 Means of delivery .89.2 Risk and safety labelling in accordance with EU Directi
12、ves 89.3 Transportation regulations and labelling 89.4 Marking .89.5 Storage 9Annex A (informative) General information on pyrolyzed coal material 10A.1 Origin . 10A.2 Properties 10A.3 Use . 11A.4 Hydraulic characteristics . 12A.5 Rules for safe handling and use . 12A.6 Emergency procedures 12Biblio
13、graphy . 14BS EN 12907:2009EN 12907:2009 (E) 3 Foreword This document (EN 12907:2009) has been prepared by Technical Committee CEN/TC 164 “Water supply”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an id
14、entical text or by endorsement, at the latest by September 2009, and conflicting national standards shall be withdrawn at the latest by September 2009. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not b
15、e held responsible for identifying any or all such patent rights. This document supersedes EN 12907:2003. Differences between this edition and EN 12907:2003 are editorial to harmonize the text with other standards in this series. According to the CEN/CENELEC Internal Regulations, the national standa
16、rds organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Por
17、tugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 12907:2009EN 12907:2009 (E) 4 Introduction In respect of potential adverse effects on the quality of water intended for human consumption, caused by the product covered by this European Standard: a) this Eur
18、opean Standard provides no information as to whether the product may be used without restriction in any of the Member States of the EU or EFTA; b) it should be noted that, while awaiting the adoption of verifiable European criteria, existing national regulations concerning the use and/or the charact
19、eristics of this product remain in force. NOTE Conformity with this standard does not confer or imply acceptance or approval of the product in any of the Member States of the EU or EFTA. The use of the product covered by this European Standard is subject to regulation or control by National Authorit
20、ies. BS EN 12907:2009EN 12907:2009 (E) 5 1 Scope This European Standard is applicable to pyrolyzed coal material used for treatment of water intended for human consumption. It describes the characteristics of pyrolyzed coal material and specifies the requirements and the corresponding test methods f
21、or pyrolyzed coal material. It gives information on its use in water treatment. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the re
22、ferenced document (including any amendments) applies. EN 12901:1999, Products used for treatment of water intended for human consumption - Inorganic supporting and filtering materials - Definitions EN 12902, Products used for treatment of water intended for human consumption - Inorganic supporting a
23、nd filtering materials - Methods of test 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 12901:1999 apply. 4 Description 4.1 Identification 4.1.1 Chemical name Carbon (C). 4.1.2 Synonym or common names None. 4.2 Commercial forms Pyrolyzed coal materia
24、l, according to this standard, is a thermally treated coal and is available in different particle size ranges. 5 Physical properties 5.1 Appearance The product is a brown to black coloured dull granular material with spherical or angular shape, porous structure, and smooth texture. The product shall
25、 be generally homogeneous and shall be visibly free of extraneous matter. 5.2 Particle size distribution The particle size distribution shall be determined on samples taken at the point of manufacture. BS EN 12907:2009EN 12907:2009 (E) 6 The particle size distribution shall be described by either: a
26、) effective size: (d10) with a permitted tolerance of 5 %; uniformity coefficient: (U) shall be less than 1,5; minimum size: (d1) with a permitted tolerance of 5 %; b) or, by particle size range and by mass of oversize and undersize particles according to application: the maximum permitted contents
27、of oversize and undersize are mass fraction 5 % for application of the product as a filtration layer in multi-media filters and mass fraction 10 % for use in single media filters. For use as a support layer, maximum contents of oversize and undersize of mass fraction 15 % are acceptable. See A.2.3 f
28、or examples of available particle sizes that are used. NOTE 1 The particle size can decrease during transportation and handling. NOTE 2 Other values can be necessary for certain applications. 5.3 Density 5.3.1 Bulk density loose The bulk density loose shall be in the range of 450 kg/m3to 560 kg/m3.
29、5.3.2 Bulk density packed The bulk density packed shall be in the range of 460 kg/m3to 580 kg/m3. 6 Chemical properties 6.1 Composition of commercial product The composition of the commercial product shall conform to the requirements specified in Table 1. Table 1 Composition of commercial product Pa
30、rameter Content of the commercial product in mass fraction % C (water and ash free basis) min. 85 Ash max. 15Volatile matter max. 5 NOTE 1 Values of these parameters do not influence filtration properties, but give information about the source of pyrolyzed coal material. NOTE 2 Further information i
31、s given in A.2.1. 6.2 Purity criteria 6.2.1 General This European Standard specifies the minimum purity requirements for pyrolyzed coal material used for the treatment of water intended for human consumption. Limits are given for impurities commonly present in the BS EN 12907:2009EN 12907:2009 (E) 7
32、 product. Depending on the raw material and the manufacturing process, other impurities may be present and, if so, this shall be notified to the user and, when necessary, to the relevant authorities. NOTE Users of this product should check the national regulations in order to clarify whether it is o
33、f appropriate purity for treatment of water intended for human consumption, taking into account raw water quality, contents of other impurities and additives used in the products not stated in the product standard. Limits have been given for impurities and chemical parameters where these are likely
34、to be present in significant quantities from the current production process and raw materials. If the production process or raw materials lead to significant quantities of impurities, by-products or additives being present, this shall be notified to the user. 6.2.2 Water-extractable substances The p
35、roduct shall conform to the requirements specified in Table 2. Table 2 Water-extractable substances Substance Limit in the extraction waterg/l Arsenic (As) max. 10 Cadmium (Cd) max. 0,5 Chromium (Cr) max. 5 Mercury (Hg) max. 0,3 Nickel (Ni) max. 5 Lead (Pb) max. 5 Antimony (Sb) max. 3 Selenium (Se)
36、max. 3 Cyanide (CN) max. 5 PAH amax. 0,02 aPolycyclic Aromatic Hydrocarbons: the sum of the detected concentrations of fluoranthene, benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(a)pyrene, benzo(ghi)perylene, indeno(1,2,3-cd)pyrene. 7 Specific properties Pyrolyzed coal material is not an activat
37、ed carbon but does show adsorption properties. Under defined conditions, it removes chlorine and ozone as well as organic matter. 8 Test methods 8.1 Sampling Prepare the laboratory sample(s) required by the relevant procedures described in EN 12902. 8.2 Analysis 8.2.1 Particle size distribution The
38、particle size distribution shall be determined in accordance with EN 12902. BS EN 12907:2009EN 12907:2009 (E) 8 8.2.2 Bulk density loose The bulk density loose shall be determined in accordance with EN 12902. 8.2.3 Bulk density packed The bulk density packed shall be determined in accordance with EN
39、 12902. 8.2.4 Content of carbon The content of carbon shall be determined in accordance with EN 12902. 8.2.5 Ash The ash shall be determined in accordance with EN 12902. 8.2.6 Content of volatile matter The content of volatile matter shall be determined in accordance with EN 12902. 8.2.7 Content of
40、water-extractable substances The content of water-extractable substances shall be determined in accordance with the method for granular materials given in EN 12902. 9 Labelling, transportation and storage 9.1 Means of delivery Pyrolyzed coal material shall be delivered in bags, semi-bulk containers,
41、 or bulk. In order that the purity of the product is not affected, the means of delivery shall not have been used previously for any different product or it shall have been specially cleaned and prepared before use. 9.2 Risk and safety labelling in accordance with EU Directives 1)At the date of publ
42、ication of this European Standard, pyrolyzed coal material was not listed as a dangerous substance. NOTE Annex I of the Directive 67/548/EEC on Classification, packaging and labelling of dangerous substances and its amendments and adaptations in the European Union contains a list of substances class
43、ified by the EU. Substances not in this Annex I list should be classified on the basis of their intrinsic properties according to the criteria in the Directive by the person responsible for the marketing of the substance. 9.3 Transportation regulations and labelling At the date of publication of thi
44、s European Standard, pyrolyzed coal material was not a dangerous cargo. 9.4 Marking The marking shall include the following: the name “pyrolyzed coal material“, trade name and particle size range; the net mass or the volume; 1) See 1. BS EN 12907:2009EN 12907:2009 (E) 9 the name and the address of t
45、he supplier and/or manufacturer; the statement “this product conforms to EN 12907“. 9.5 Storage Pyrolyzed coal material can be stored for an unlimited period of time. BS EN 12907:2009EN 12907:2009 (E) 10 Annex A (informative) General information on pyrolyzed coal material A.1 Origin A.1.1 Raw materi
46、al Natural coal. A.1.2 Manufacturing process Pyrolyzed coal material is produced from natural coal, thermally treated in a special oven, and sieved. A.2 Properties A.2.1 Chemical composition The composition depends on the origin of the raw material. Typical values are given in Table A.1 (the importa
47、nt components are given in Clause 6). Table A.1- Chemical composition Parameter Content of the commercial product in mass fraction % SiO2max. 2 Fe2O3max.Al2O3max. 1 MgO max. 0,5 CaO max. 5 K2O max. 0,5Na2O max. 0,5 Mineralogical and petrological analyses give additional information. If a change in t
48、he production process or raw material leads to significant change in chemical composition or quantities of impurities, this should be notified to the user. Clause 6.2 specifies the maximum quantities of water-extractable substances, determined according to EN 12902. Metal concentrations decrease ove
49、r the operational life of a pyrolyzed coal material filter. In the test method, concentrations are determined on the third bed volume of water treated whereas in practice, over many years operation, hundreds of thousands of bed volumes are treated. In addition, when commissioning a pyrolyzed coal material filter it is common practice to divert the filtrate to waste for a sufficient period to ensure that leachable impurity concentrati
